package com.example.demo.mapper;

import com.example.demo.model.MessageInfo;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Service;

import java.util.List;

@Mapper
public interface MessageMapper {
    @Insert("insert into message_info (`from`,`to`,`message`) values (#{from},#{to},#{message})")
    public void insert(MessageInfo messageInfo) ;

    @Select("select * from message_info")
    List<MessageInfo> query();
}
